Work-positioning device



A. E. JERRAM WORK POSITIONING .DEVICE Nov. 23 1926 Filed OGL. 8, 1920 /N VEN 7'0/:1

UNTE

stares OFFICE.

ARTHUR ERNEST JERRAM, F LEICESTER, ENGLAND, ASSG-NOR TO 'UNITED SHOE MA- QHINERY COCIRJPORATION, OF PATERSN, NEW JERSEY,

JERSEY.

a coaroaa'rron or new WORK-POSITIONING DEVICE.

Application filed October 8, 192D, Serial No. 415,630, and in Great Britain November, 2S, leli.

nos used for a number of the operations ilc-yed in the manufacture of boots and form against which the Work is held during tho operation of the machine to insert a es of fastcnings parallel to the edge of the portion of the shoe operated upon. Some parts of shoes, however, are of such form hat they are moved by the work feeding ans, for example an avrl, past the edge there is a tendency at times for the wollt to cramp between the avvl and the edge or for the edge of the Work to separate from the edge gage due to the fact that the movement of the feeding means is in a straight line While the edge of the work may be and usually is curved and at times on a comparatively short radius. This tendency at times produces an objectionable irregularity inthe spacing of the aWl-holes from the edge of the Work and may even result in a nail missing` an aivl hole.

hn object of the invention accordingly is to provide in such machines improved means .le for accru'ntely positioning the Work for each of a series of operations performed on the work, the po-:itiouing boing accomplished by the machine with a minimuni of effort and :attention on the part of the operative and in a simi'ile and @if ive manner. In the illustinted embooimeiu; of the invention this is mrccmplished by permitting the Work feedi= M nember and the edge gage to have movement trans iersely of the line of feed of the woflr dn the feeding movement but so controlling said .movement that at critical instants in the operation of the machine, suc-ii as at the conclusion of each feeding movement` the feeding member and the GU odge are positively positioned so that -i il the operation following each feeding movement is correctly performed at the desired location.

With this object in view, the herein disclosed machine is provided with an aWl arranged to pierce and feed the Work and with an edge gage to control the position of the vvorlr, the aivl and the edge gage being carried by a bracket mounted for ioating movement in a direction transversely of the line of feed and lightly spring-pressed towards the operator. By reason of the carrying of the aivl and the edge gage by this bracket the edge gage is positively moved in the direction of the feed With the aivl. This bracket carries a cam roll arranged for engagement, at the conclusion of the feeding` movement, .vith an opening in va stationary member.A This opening has an enlarged mouth so that the cam roll Will enter it, Yirrespective of the position of the aivl and edge gage transversely of the line of feed, but is formed with a seat arranged deiinitely to position the cam roll transversely of the line of feed at the conclusion of the feeding movement. Thus the operative is not requiredA to hold the Work up to a fixed gage or indeed to exercise any very accurate control of the Work but may position it anywhere Within considerable limits. In vinserting fastenings around a curve of comparatively short radius, for example around the toe of a shoe, it is only necessary for the operator to keep the edge of the Work Within the. range of the transverse movement of the edge Moreover, any tendency to cramp or jam in passing around a curve of short radius, with the consequent danger of variation of spacing of the awl hole from the edge of the Workv and of the nail not being inserted in the aWl hole,- is eliminated for during the feeding movement the gage moves With the avvl and there is no relative movement of the gage and the Work; While during the return movement the awl is free from the Work so that there can be no cramping or jamming.

While in the accompanying drawings and specification the invention is disclosed as embodied ina 'nailing machine, it is to be diswe I f3 mi tinetly understood that this is pri Laril).T for i rposes of illes tion and that die invenits aspects, in no Way Fia. 2 is o nien view ot the work control-- C L i ling-means, ce 'tain parts ot the machine heingl shown in ross section.

:In the drawings. the invention is illnstratA ed" asappliedto' anailingv `nnmhine ot the type shovvn' in said Letters Fatent o1 the United'Statest'lvlo.90,62%7 provided with a sWiningtliea-d" (i having a sn ita-lily operated driveriSaiid on avvl l0 operatedv intimed relation to seid driver to penetrate and feed the `Work to Jastening inserting` phsition and thereafter to bewithdravvn orwthe insertion ot a fastening. rlhe fastenings may bell'ed through the Usual ii'aceway l1 into position to he ins ed liv the driver 8 through the usual'throat l2 into the Work. Any suitable torni ot separator 13 may he used to control the feed oi:` the 'fasteninge from the racevvzty tothe throat in accordance with the'usual practice.

The aWl is mounted upon the lower end ot an aivl bar le pivoted at its upper end at 1G to a shaft i8 mounted Vtor oscillating movement in the leverv 20. Relative end- \vise movement ot the shott 18 with respect to the lever 2G is prevented, for instance b5' suitahlccollars or shoulders 22, 24 With which the shaft i8 is provided adjacent to head 6 to reciprocate the avvl lier llito causo the avjl to penetrate and ne v-ithdra'wn from the Work at appropriate intervals during the operation o'j the machine to pierce the wort: for the insertion ot the testenings. The swinging Iheed 6 is oscillzited in the manner set'forth in said Letters Potent to cause the avl 10 to feed the ivork'tephy-step through the machine. 'I l* i "The connection o the avvl her 11i to lever :20 is such as' top'ermit movement "of the etvl laterally of and arpproriimately at trib' angles-to the line of feed dering the Wort; feeding movement thereof. 'Y A'Pivotedatlfto- 'the swinging head 6 ot the mach "is a hracl-et or lever 8O provided with a slideway 32- to receive tor'fverticel sliding' movement hlocl seid block being provided W'thn spherical boerin@` por-- tion 3.6 to" eceive"'"e; spherical portion? carried .by-'the awl bar 1i ThuS it will be the swine.

seen that the bracket may roch throne-i e smell angle about its pivot 28m such n nner as to move the att-'l traneversel)T oit' the line olE feed of the Work Without inter 'lering with either the Work feeding or work penetrating movement ot the awl.

ligidly attached to the bracket 30, as hy screws 40, is an arm l2 having,` mounted therein, as by a screw and slot connection ifi, an edge gage Carried near the e; i ity of arm 4t2, is a cem roll Li8 per'terahliy adjustably'connected to the arm 4t2, es h3' an adjustable eccentric `43. lt should be here noted that the coge gage partrd;V1 of the work feeding; movement of the aval both the avvl and edge gage are carried of the bracket 30 which is mounted upon di sii/inging heed of the maclnne. Thus awl' andedgegagc are at all times opp one anotl `#when considered ritiri-eene the direction of the line of te c ed though t? are mounted lortloetingmovement to transversely of the line ot feed dering work feeding movement in accordance ifi-n the contour' ot the Work operated upon. This nlovement ofv the evtl and edge transversel?,7 ot' the line of feed is independent ot the length of each feedingl movement oft-he aavl ond is in no wav detrimental to ,the proper positioning ot the l'ostenings pro f'ide'd only that precautions are taken to ensure the correct relation o't the edge je and owl to the line of feed at the conclusA )n of' each feeding' movement. To ensure this latter, a cam slot is provided upon a relatively stationery part oi' the machine t engagement with the com roll t8 c.r cervi' to position the edge t "l "ge end avrl at coe conclusion oit each feeding movement. This cam slot Vis -Formed with an entrance enh stantially Wider than the diameter ot the com' roll alti so as to permitV niov noot of' the cani roll i8 transversely ot the slot dur-- ing' the 'feeding moven'ient and is p" il( :it its terminal portion 'with a seini-c vl ad'iustehy connected ai' a plete dot-connection with screw and st lily carried relet tion part ot the aelnne an Witlr parallel moved into al? thee' se 'eje to the line ot teer Vupon is such that it is not c. they ivork controlling means lier 'fl spring` G2 is attached 5' il tt arr 42 and is enchored at ot s p 1g head G or to anotoer s part of the machine and tends to (ill Cit

the arm a2 and bracket ll in a counterclockwise direction, as viewed in Fig. .2, to hold the cam roll 48 in Contact with the forward surface of cam slot 50.

ln the operation of the machine, the work is pressed by the operative against the edge gage 4 6. )uring the feeding movement of the awl the cam roll i8 moves in the cam slot 5U, at the conclusion of the feeding inovement bringing up in the terminal portion 52 thereof to locate the work in correct nail driving position. lf, during the return movement of the awl the et gage meets a curve on the work extending toward the rear of the machine, the edge gage, and with it the awl, will be moved by the engagement of the edge gage with the work towards the rear of the machine about the pivot 28 of bracket 30 against the tension of spring- 62 and during the next feeding movement the rear face of the cam slot 50 will guide the cam roll 48 to the terminal portion 52 of the cam slot correctly to position the work to receive fastening. Should the curve on the work exten-d toward the front of the machine the edge gage, during' the return movement of the awl., will move toward the front of the machine b v virtue of the action of spring 62 which will hold the edge gage in engagement with the work and upon the next feeding movement of the awl the front surfaceY of the cam slot 50 will. be engaged by the roll 48 to ensure the movement of the work into correct nail-receiving position. In brief, whatever the position of the work with relation to the desired line of feed during the feeding movement, it will be brought into corrcet relation thereto at the conclusionV of each feeding movement by the seating of cam roll 48 in the seat 52 provided at the terminus of slot 50. n

Having described my invention, what I claim as new and desire to secure by letters Patent of the United States is:

1. A fastening inserting machine having a reciprocating nail driver, a co-operating reciprocating work-feeding awl, and a gage arranged for engagement with the edge of the work and mounted to move relatively to its support in the machine to contact with the edge of the 4work in. different positionsthereof in the plane of the work and correspondingly to determine thereby the point in the work and relatively to the machine at which the awl acts on the work,

together with means invariably moving the awl from its position of penetration into line with the driving path of the driver.

2. A machine of the class described having a work feeding member free to movev transversely of the line of feed during a part of its work feeding movement, and a cam arranged to guide the feeding member from any position which it ymay assume during its work feeding movement to a predeter mined position.

3. A machine according to claim 2 provided 'with anv additional cam having an operative and an inoperative position and adapted when in operative position to guide the work in a fixed path during the feed movement thereof.

1i. A. machine for inserting fastenings having, in combination, an awl arranged to feed the work, and an edge gage, the et gage and the awl being movable in unison transversely of the direction of feed, and means for moving the edge gage inte a predetermined positionv at the conclusion each feeding movement.

5. A machine for inserting fastenings having, in combination, an aWl arranged to Vfeed the work, and an edge gage, the edge and the awl being yieldingly mounted for movement in unison transversely of the direction of feed, and positive means for moving the edge gage into a predetermined position at the conclusion of each feet.: movement.

(S. A machine for operatingl upon shoes having, in combination, an awl arranged for work penetrating and feeding move ment, and an edge gage in (1o-operative lation to said awl constructed and arranged for floating movement transversely of the work during the work feeding movement. 7. A machine for operating upon shoes having, in combination, means for feeding the work, an edge gage for the work mally supported for movement transvei of the line of feed of the work through the machine and separate from the feeding means, and means for ensuring a uniiorm relation of the gage to the line of feed at critical instants in tic several cycles of operation of the machine.

8. A machine for forming a seam thereby to connect shoe part-s having, in combina,- tion, means for feeding the .work through the machine capable of movement t versely of the direction of the seam, a i constructed and arranged for movement with said feeding means transversely of the direction of the seam,l and means positively to position said feeding means and gage with respect tothe line of the at critical instants in the operation of the machine.

9. A machine for opera-ting upon slices having, in combination, a work feeding member and an edge gage, said feeding member and edge gage being arranged fm movement transversely of the line of feed, and means for positiifely positioning the feeding member and the edge v i respect to the line of feed at critical instants in the operation of the machine.

- 10;'A. machine for operating upon shoes having, in combination, astep-bystep oper-- ated Worky feeding member and en edge gage, said feeding member. and edge gage being arranged for movement'transversely of the line of feed, and means for positively positioning the feeding member and edge gage with respect to the line of feed at the conclusion of each feeding movement.

11. n machine for operating upon shoes having intermittently operated feeding means and an edge gage to position the ivork vvith respect to said feeding means movable in the direction of feed with said feeding means and having capability of movement in a direction, transversely of the line of feed, and means for ensuring the correct position of the edge gage at the completion of each fcedingrmovement.

i machine for operating upon shoes havingstep-by-step operated feeding means and an edge gage to position the Workivith respect to said feeding means movable in the direction of feed with said feeding ine-ans, sai Vedge lgage and 'said feeding means come' arranged to have capability of rement t insversely of the line of feet, :is for ensuring thecorrect position means and edge gage at the 4tion of each feeding movement.

machine for inserting fastenings in shot,u having, in combination, an avvl, means to move said aivl in a direction to feed the shoe partoperited upon through the machine, an edge opoosite said aivl, said gage having capability of ansverscly of the line of feed, for ensuring the correct relal and edge gage to the line of glio conclusion of each feeding movei machine for forming a seam there by to c( iect shoe parts having, in combination, an aivl capable of movement trans- \.'ersely of the line of feed, means for giving :said aivl alternating Work penetrating and work feeding movements, an edge gage constructed and arranged for movement- With said aivl transversely of the line of feed, and means positively to position said aivl and edge gage ivitli respect to the line of feed at the conclusion of each Work :feeding movement.

A., machine for inserting fastenin 's in 1 K -13 n sno'c haring, in combination, a movable bracket, an arvlV carried by said bracket, means for gir/ing said aivl a feeding movenient to feed the Work through the machine, an edge gage Acarried by said bracket and aixanged for moveiii-,it with said bracket l said aivl transversely of the line of feed the Work, and means positively to .position said aivl and edge gage ivitli respect'to the line of the conclusi-on 'of each feeding movement. l i

i6. iftmachine for insertingfastenings in shoes having, in combiiatioi'i," al` pivoted means for giving said awl a feeding movementv to feed the Work through the machine, an edge gage carried by said bracket and ai'- ranged for movement with said bracket and said avil transversely of the line of feed of the Work, and means for ensuring the coi'- rect relation of said a .d and of f gage to the line of feed at the conclusion of cach feeding movement.

17. A machine for inserting fastonines shoes having, in combination, a i bracket, Work feeding means carried by said bracket, an edge gage carried by said bracket and arranged for movement with said bracket and said feeding means transif'crsely of the line of feed of the Work, and a pair of co-operating elements carried by a relatively stationary part of the machine and by said movable bracket respectively for positively positioning the Work feeding means and the edge gage ivith respect o the line of feed of the Work at critical instants iii the operation of the machine.

18. A machine for insertino' fasteninos in I-s C 4 shoes having, in combination, a movable bracket, an awl carried by said bracket and arranged for universal movement, means to give said aivl Work penetrating and Work feeding movements, an odge carried by said bracket and arranged for movement with said bracket and said aivl transversely of the line of feed of the Work, and a pair of co-opcrating elements carried by a relatively stationary part of the machine and by said movable bracket respectively for positively positioningthe aivl and the edge with respect to the line of feed of the ivorli at the conclusion of each feeding movement.

19. A machine for inserting fastenings in shoes having, in combination, a movable bracket, an aivl carried by said bracket and arranged for alternate Work penetrating and Work feeding movements, an edge gage carried by said bracket and arranged for movement ivitl said bracket and said aivl at an angle to the line of feed, a cam cai'- ried by a relatively stationary part of the machine and having a surface arranged for contact ivith an ci yaging member carried by said bracket pesei to position said edge gage and aval ivith respect to the line of feed at the conclusion of each feeding movement, and ineens tending to move said engaging iiiei'nber into contact With a siii*- face of said cam.

20. fr machine for inserting fastenings in shoes having, VinV combination, a movable bracket, an arvl carried by said bracket and arranged for alternate ivork penetratii and viork feeding movements, an edge carried by` said bracket'an'd arranged for movement with said bracket and said aivl transversely ofthe line of feed, a cam carried'by'a rela'ti'vely stationary part of the machine'and'liaving a portion of vits surface arranged for contact with a cam roil carried by said bracket positively to position said edge gage and aivl With respect to the line of feed at the conclusion of each feeding movement, and a spring tending to move said cam roll into Contact With the surface of said cam.

2l. A machine for inserting metallic fastenings in shoes having, in combination, an avvl means for operating the aivl to canse it to penetrate, to feed and then to Withdraw from the stock, means operated in timed relation to the aWl to insert a fastening in the hole made by the aivl after the Withdrawal of the latter, and an edge gage arranged in co-operative relation to the avvl and mounted for movement in the direction of feed with the aivl, said edge gage and awl having capability of movement trans versely of the line of feed and means positively to position the aWl and edge gage With respect to the line of feed at the conclusion of each feeding movement.

22. A machine for inserting metallic fastenings in shoes having, in combination, a driver, an aivl, means for operating said awl in timed relation to the driver for piercing the Work and feeding the Work through the machine, and an edge gage constructed. and arranged for floating movement trans` versely of the work during the Work feeding movement of the aWl.

23. A machine for inserting metallic fastenings in shoes having, in combination, an aivl, means for operating the aivl to cause it t0 penetrate, to feed, and then to Withdraw from the Work, a driver opera-ted in timed relation to the aWl to insert a nail in the hole made by the aWl after the Withdrawal of the latter, and an edge gage op posite the avvl and arranged for movement in the direction of feed With the avvl, said edge gage and aivl having capability of movement transversely of the line of feed and being provided With means to ensure their correct relation to the line of feed at the conclusion of each feeding movement.

24. A machine for inserting fastenings having, in combination, an aivland a driver arranged for relative movement in a direction transversely of the Work, means for operating the aivl in timed relation to the driver to pierce and feed the Work, and an edge gage arranged for movement parallel to the movement of the aivl during the Work feeding movement of the avvl.

25. A fastening inserting machine having a swinging head, an avvl carried by said head arranged to pierce and feed the Work, and an edge gage to control the presentation of the Work to the machine, the awl and the edge gage being mounted for movement transversely of the direction of swing of the swinging head.

26. A fastening inserting machine having, in combination, Work feeding means, and an edge gage separate therefrom, the edge gage and the Work feeding means being arranged for movement transversely of the direction of feed.

27. A machine for operating upon shoes having, in combination, an aivlarranged for Work penetrating and feeding movement, an edge gage located to engage a Work-piece -fed by said avvl and constructed and arranged for movement transversely ofy the path of feed during t-he Work feeding movement, and means for positively positioning said edge gage transversely of the line of feed at the conclusion of the Work feeding movement of the avvl.

28. A machine for operating upon shoes having, in combination, a Work feeding tool arranged to engage and feed a work-piece, means for giving said feeding tool a Work feeding movement, and an edge gage located to engage the Work-piece fed by said feeding tool and constructed and arranged for floating movement transversely of the line of feed during a portion of the Worn feeding movement.

29. A machine for inserting metallic fastenings in shoes having, in combination, a driver, an avvl, means for operating said avvl in timed relation to the driver to cause the aWl to pierce the Work and feed the Work through the machine, an edge gage constructed and arranged for movement transversely of the Work during a portion of the Work feeding movement of the avvl, and means for positively positioning said edge gage in a direction transverse of the line of feed at the conclusion of the ivorl feeding movement.

In testimony whereof I have signed my name to this specification.

ARTHUR ERNEST JERRAM. 

